People with type A blood cart receive______.

A． AB

B． B

C． O

D． None of the above

[试题]Why did Goldman hire people to push carts around his market? (No more than 10 words)

[问答题]1)The original insight that people could be classified into Type A and Type

[单选题]Under stress, people's blood pressure goes up, _________their race or sex.A． whicheverB． no matter howC． whetherD． no matter what

[单选题]The man whose cart got__________ in the mud preyed to God for help instead of getting it out himself.A． engagedB． stuckC． markedD． plunged

[单选题]C．art: Hi,Mary, are you free tonight?Mary: _________. Cart?C．art: Shall we have a game of chess?A． What about itB． What of itC． What forD． What is it

[名词解释] 血岛（blood island）

[名词解释] Blood-Thymus barrier

[名词解释] Blood-air barrier

[单选题] A multicast router may receive thousands of multicast （71） every day for different groups. If a router has no knowledge about the membership status of the （72） , it must broadcast all of these packets. This creates a lot of traffic and consumes （73）

[单选题]Soon,more of the information we receive via the Internet could come(71)in digital wrappers.Wrappers are made up(72)software code that's targeted to do specific things with the data(73)within them,such as helping to define queries for search engines.